Apache Junction weather by month
What a typical year looks like in Apache Junction, Arizona: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Mormon Flat, 21 km from Apache Junction; records cover 1923–2026.
The year at a glance
- Precipitation a year
- 12 in305 mm
- Snow a year
- Rare
- Last spring freeze
- Jan 28
- First fall freeze
- Dec 22
- Heating degree days
- 1,104
- Cooling degree days
- 4,127
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 33°1° (heating, 99%) and 112°44° (cooling, 1%).
Month by month
Apache Junction in January
Highs average 68°20° and lows 44°7°, with 1.9 in49 mm of precipitation in a typical January.
- Record high
- 82°28° (2000)
- Record low
- 17°−8° (2004)
- Heating degree days
- 290
- Cooling degree days
- 3
Apache Junction in February
Highs average 70°21° and lows 45°7°, with 1.5 in38 mm of precipitation in a typical February.
- Record high
- 90°32° (1986)
- Record low
- 22°−6° (1933)
- Heating degree days
- 216
- Cooling degree days
- 4
Apache Junction in March
Highs average 77°25° and lows 50°10°, with 1.7 in44 mm of precipitation in a typical March.
- Record high
- 105°41° (2026)
- Record low
- 20°−7° (1971)
- Heating degree days
- 106
- Cooling degree days
- 68
Apache Junction in April
Highs average 85°30° and lows 55°13°, with 0.47 in12 mm of precipitation in a typical April.
- Record high
- 103°39° (1943)
- Record low
- 31°−1° (1933)
- Heating degree days
- 22
- Cooling degree days
- 184
Apache Junction in May
Highs average 94°34° and lows 64°18°, with 0.28 in7.1 mm of precipitation in a typical May.
- Record high
- 114°46° (1934)
- Record low
- 39°4° (1973)
- Heating degree days
- 3
- Cooling degree days
- 434
Apache Junction in June
Highs average 104°40° and lows 73°23°, with 0.04 in1 mm of precipitation in a typical June.
- Record high
- 120°49° (1970)
- Record low
- 53°12° (1993)
- Heating degree days
- 0
- Cooling degree days
- 699
Apache Junction in July
Highs average 106°41° and lows 80°27°, with 1.3 in34 mm of precipitation in a typical July.
- Record high
- 118°48° (1934)
- Record low
- 54°12° (1985)
- Heating degree days
- 0
- Cooling degree days
- 862
Apache Junction in August
Highs average 104°40° and lows 79°26°, with 1.4 in36 mm of precipitation in a typical August.
- Record high
- 116°47° (1933)
- Record low
- 57°14° (1975)
- Heating degree days
- 0
- Cooling degree days
- 817
Apache Junction in September
Highs average 98°37° and lows 74°23°, with 0.48 in12 mm of precipitation in a typical September.
- Record high
- 115°46° (1933)
- Record low
- 50°10° (1974)
- Heating degree days
- 0
- Cooling degree days
- 637
Apache Junction in OctoberThis month
Highs average 89°32° and lows 63°17°, with 0.74 in19 mm of precipitation in a typical October.
- Record high
- 110°43° (2024)
- Record low
- 36°2° (1971)
- Heating degree days
- 11
- Cooling degree days
- 341
Apache Junction in November
Highs average 75°24° and lows 52°11°, with 0.42 in11 mm of precipitation in a typical November.
- Record high
- 95°35° (2008)
- Record low
- 27°−3° (1976)
- Heating degree days
- 131
- Cooling degree days
- 76
Apache Junction in December
Highs average 65°18° and lows 44°7°, with 1.7 in44 mm of precipitation in a typical December.
- Record high
- 83°28° (1939)
- Record low
- 18°−8° (2003)
- Heating degree days
- 325
- Cooling degree days
- 2